SFP1/YLR403W Additional Physico-chemical Properties Help

Physico-chemical properties were determined using the ProtParam tool available through ExPASy to analyze the primary protein sequence for atomic composition, extinction coefficient, estimated half-life, instability index and aliphatic index. Transcript translation calculations were determined using CodonW.


A.A. Composition
Ala[A] 39 5.7%
Arg[R] 21 3.1%
Asn[N] 93 13.6%
Asp[D] 49 7.2%
Cys[C] 7 1.0%
Gln[Q] 37 5.4%
Glu[E] 12 1.8%
Gly[G] 34 5.0%
His[H] 36 5.3%
Ile[I] 38 5.6%
Leu[L] 34 5.0%
Lys[K] 26 3.8%
Met[M] 24 3.5%
Phe[F] 10 1.5%
Pro[P] 33 4.8%
Ser[S] 88 12.9%
Thr[T] 53 7.8%
Trp[W] 2 0.3%
Tyr[Y] 19 2.8%
Val[V] 28 4.1%
Total Length 683

Instability index
Instability index (II) 45.39
This classifies the protein as unstable

Atomic composition
Carbon 3133
Hydrogen 4916
Nitrogen 976
Oxygen 1096
Sulfur 31
Total number of atoms 10152
Formula = C3133H4916N976O1096S31

Estimated half-life
Escherichia coli (in vivo) >10 hours
mammalian reticulocytes (in vitro) 30 hours
yeast (in vivo) >20 hours

Extinction Coefficients at 280 nm
assuming ALL Cys residues appear as half cystines 39685 M-1 cm-1
assuming NO Cys residues appear as half cystines 39310 M-1 cm-1
assuming all Cys residues are reduced 39310 M-1 cm-1
assuming all pairs of Cys residues form cystines 39685 M-1 cm-1

Aliphatic index
Aliphatic index 58.71

Coding Region Translation Calculations
Codon Bias 0.057
Codon Adaptation Index 0.163
Frequency of Optimal Codons 0.452
Hydropathicity of Protein -0.880
Aromaticity Score 0.045